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Re:Bing Says 25% of All Searches Are Voice Searches by hammock on Tuesday May 10, 2016 @09:10AM (#11666865)
Back on the envelope - on mobile so forgive no sources:

  150b Bing searches/yr (from 12% mkt share)
  -->37.5b voice searches

  500m iOS devices (ignoring Cortana/Alexa as negligible)
  -->75m have ever used Siri (15%)
Implies 500 voices searches/year or one or two per day, per Siri user. Seems high

Edit: found a source on Quora that suggested 1b Siri queries per week. So it's in the ballpark- since not all of those will be web searches

Re:Bing Says 25% of All Searches Are Voice Searches by skj on Tuesday May 10, 2016 @09:44AM (#11667046)
As a Google voice user, I do probably 5 voice searches per day. Perhaps not typical.